hey, i have recently been doing daily water changes to help my tank out a little. I cange 1 gallon a day and its quick and easy. Ever since ive started all my corals have taken off. I also think this helps with the consistency with calc alc and mag. Ive gotten in to a daily routine for this and im not lugging 5gallons of water up and down the stairs. This daily 1 gallon change takes about 15 min .I make up my new water on the weekends. once in a while i do a little more through and get out the syphon, this really even isnt necessary. I just wanted to share what works for Me.